Complementary and Supplementary with Equations

What term is used to describe a pair, or group, of angles that equal 180 degrees?

• Supplementary Angles

• Complementary Angles

• Vertical Angles

• Congruent Angles

• 2x-6=7x+4
• 2x-6+7x+4=90
• 2x-6+7x+4=180
• 2x-6+7x+4=360

Tell whether the angles are complementary or supplementary. Then find the value of x.

• Complementary; x=25

• Complementary; x=5

• Supplementary; x=25

• Supplementary; x=5

what equations would you use to solve for x?

• 2x-6=7x+4

• 2x-6+7x+4=90

• 2x-6+7x+4=180

• 2x-6+7x+4=360

Which equation could you use to solve for the value of x?

• 3x + 10 − 2x = 180

• 3x + 10 = 180

• 3x + 10 + 2x = 180

• 3x + 10 = 2x

Which equation can be used to determine the value of x?

• 2x + 10 = 46

• 2x + 10 + 46 = 180

• 2x + 10 + 46 = 90

• not here

What angle pair is this?

• supplementary (add up to 180^o)

• Vertical Angles (they are congruent)

• Corresponding angles (they are congruent)

• Complementary angles (add up to 90^o)

What is the value of x?

• 37

• 72

• 108

• 18

Find the value of "x".

• 5

• 90

• 25

• 10

Find the value of "x".

• 15

• 30

• 45

• 60